Every video uploaded to YouTube could one day be translated into every language - one of a range of new features announced by the firm's chief executive.

Susan Wojcicki announced a project called Fan Subtitles, a massive crowdsourced translation effort that encourages bilingual users to type subtitles for their favourite videos.

Speaking at the Vidcon conference, she also announced the launch of a 'tip jar' for content creators, so viewers could easily "show a creator their love" by tipping any amount up to $500 (£293).

Users will also get interactive cards to overlay on videos that directly link to their Indiegogo or Kickstarter fundraising efforts.

Other new features include an option to play videos at up to 60 frames per second, which is likely to prove popular with users who stream computer games.

In a blog post, the company said: "Your video game footage with crazy high frame rates will soon look as awesome on YouTube as it does when you're playing, when we launch support for 48 and even 60 frames per second in the coming months."

The 100 most popular games channels on YouTube generated nearly 3.5 billion video views in May.

Content creators will also get access to real-time video metrics, an announcement that drew cheers from the crowd.

YouTube said the features will be made available in the coming months.